The New Adventures of Mighty Mouse and Heckle & Jeckle is a 1979–1980 television series featuring newly produced Mighty Mouse and Heckle & Jeckle cartoons. The series was produced by Filmation, and aired from 1979 to 1980 on CBS with 96 episodes (128 if counting the educational "Nature" and "Homonyms" segments, hosted by Mighty and Heckle and Jeckle respectively) produced. It was the second Mighty Mouse cartoon series, following the original Mighty Mouse Playhouse from 1955 to 1967, and followed by Mighty Mouse: The New Adventures, which aired from 1987 to 1988.